Voltaren Emulgel 12H is a topical pain relief gel containing diclofenac diethylamine. This non-greasy formulation provides up to 12 hours of targeted relief from pain, inflammation and swelling due to muscle and joint injuries, soft tissue rheumatism, and mild arthritis. The active ingredient diclofenac diethylamine belongs to the non-steroidal anti-inflammatory drug (NSAID) class. The gel format allows for direct application to the affected area, where it penetrates deep into the tissue to reduce inflammation and relieve pain. The 50g size is convenient for regular use. As with all medications, this should be used according to the instructions and medical advice if needed.